Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Your Apple Watch knows the water temperature
$4.99 · In-app purchases
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Water Temperature: Cold Plunge: map the core Weather workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Limited historical data visualization
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No alerts for extreme temperatures
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No unit conversion
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Your Apple Watch knows the water temperature. This app turns it into something more: a logbook for your favorite lake, the ocean on vacation, and every swim in between. With temperature curves, weather, and place. With your whole season on your iPhone. And with milestones for the cold plunge crowd. YOUR WATER LOGBOOK • Every dive is saved automatically, with temperature curve, duration, and depth • Weather and swim spot can be saved right along with it • Stats with temperature trends, records, and your swimming spots • Everything lands on your iPhone and in your private iCloud, automatically MOMENTS WORTH KEEPING • The app celebrates with you: a new cold record, a new body of water, your fiftieth dive • From "Ice bath" to "Bathtub": it tells you how the water feels • Share your reading as a beautiful graphic, square or story format ALWAYS IN VIEW • A complication for your watch face, widgets for your Home and Lock Screens • Your last reading at a glance, without opening the app MEASURING, WITHOUT LIFTING A FINGER • Measuring starts on its own the moment you dive in • A big live display, down to a tenth of a degree, sensor accuracy included • Coming up for air? The measurement waits for you and simply keeps going • The display feels it too: icy blue in winter, warm turquoise in a summer lake WELL CONNECTED • Saves your dives to Apple Health if you like, and imports your swim workouts • CSV export for anyone who wants every last detail PRIVATE, THE WAY IT SHOULD BE No account, no ads, no tracking. Your data stays on your devices and in your private iCloud. And if you look closely while measuring, you might spot a little visitor in the water. Live measuring uses the water temperature sensor of the Apple Watch Ultra, Series 10, and Series 11. No sensor Watch? The iPhone app can import the water temperatures from your swim workouts in Apple Health. Weather data from Apple Weather.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.